US3855108A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous strip electroplating apparatus
Assignee: Doduco Solutions GmbH
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Filing: 1974-01-24
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Granted: 1974-12-17
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Expires: 1994-01-24
Abstract
Abstract Conductive strip material to be electroplated is guided in an arc of about 200* about the insulating circumferential face of a wheel while electrolyte is discharged radially inward toward the strip from a tubular, semi-circular anode carrier through aligned apertures in the carrier and in a platinum anode strip on the carrier. Portions of the front side of the strip are protected from contact with the electrolyte by one or more tensioned, elastomeric masking bands moving with the strip and masking the strip edges. The bands hold the back of the strip engaged with a resilient insert in the wheel, thereby masking the back of the strip.
Inventors
- 👤 W Bolz
- 👤 H Herzog
- 👤 A Herzog
- 👤 H Neese
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:26
CPC Classifications
C; C25; C25D; C25D7/00; C25D7/06; C25D7/0614; C25D7/0671; C25D7/0678; Y; Y10; Y10S; Y10S204/00; Y10S204/07
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
150 words
Apparatus for continuously electroplating a longitudinally moving elongated strip having a conductive surface comprising, in combination: a. a support; b. a wheel mounted on said support for rotation about an axis and having a circumferential face of insulating material; c. guide means for guiding said moving strip into engagement with said face over a predetermined arc; d. a tubular anode carrier mounted on said support and extending about said wheel and said strip substantially in said arc; e. a conductive anode member mounted on said carrier spacedly opposite said face, 1. said carrier and said anode member being formed with respective aligned discharge orifices communicating with the interior of said carrier and directed toward said axis; f. conductive means for connecting said strip and said anode member to respective terminals of a source of electroplating current; and g. a conduit communicating with said interior for supplying electrolyte to said carrier.
Claim 2
Dependent Claim
150 words
Apparatus for continuously electroplating a longitudinally moving elongated strip having a conductive surface comprising, in combination: a. a support; b. a wheel mounted on said support for rotation about an axis and having a circumferential face of insulating material; c. guide means for guiding said moving strip into engagement with said face over a predetermined arc; d. a tubular anode carrier mounted on said support and extending about said wheel and said strip substantially in said arc; e. a conductive anode member mounted on said carrier spacedly opposite said face, 1. said carrier and said anode member being formed with respective aligned discharge orifices communicating with the interior of said carrier and directed toward said axis; f. conductive means for connecting said strip and said anode member to respective terminals of a source of electroplating current; and g. a conduit communicating with said interior for supplying electrolyte to said carrier.
Claim 3
Dependent Claim
58 words
Apparatus as set forth in claim 1, further comprising an endless masking band of flexible, electrically insulating material, said guide means including means for guiding said masking band in masking engagement with a selected portion of said strip while said strip is being guided over said arc, said band being interposed between said strip and said anode member.
Claim 4
Dependent Claim
25 words
Apparatus as set forth in claim 2, further comprising an annular insert of resilient insulating material on said wheel, said insert constituting said circumferential face.
Claim 5
Dependent Claim
55 words
Apparatus as set forth in claim 2, further comprising washing means for washing electrolyte from said masking band, and drying means for drying the washed masking band, said guiding means including means for guiding said band in a closed loop sequentially over said arc, said washing means, said drying means, and back to said wheel.
Claim 6
Dependent Claim
16 words
Apparatus as set forth iN claim 4, further comprising tensioning means for tensioning said masking band.
Claim 7
Dependent Claim
56 words
Apparatus as set forth in claim 2, wherein said guide means include a row of circumferentially spaced registration pins on said wheel, each pin having an axially directed point, said band being formed with a plurality of lateral notches, said points engaging said notches in the portion of said band in masking engagement with said strip.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-16 | 1978-06-17 | 1978-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-16 | 1982-06-17 | 1982-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-16 | 1986-06-17 | 1986-12-17 | $7700.00 | Window Closed / Lapsed |